---
product_id: 611377591
title: "AC Motor Variable Speed Controller for Router Fan Electric Motor Rheostat, SCR Voltage Controller 120V 220V 15A 4000W Max"
brand: "qaggum"
price: "HK$343"
currency: HKD
in_stock: true
reviews_count: 8
category: "Qaggum"
url: https://www.desertcart.hk/products/611377591-ac-motor-variable-speed-controller-for-router-fan-electric-motor
store_origin: HK
region: Hong Kong
---

# 4000W max power capacity Real-time voltage display 15A adjustable current control AC Motor Variable Speed Controller for Router Fan Electric Motor Rheostat, SCR Voltage Controller 120V 220V 15A 4000W Max

**Brand:** qaggum
**Price:** HK$343
**Availability:** ✅ In Stock

## Summary

> ⚙️ Master your motor speed with precision and power — don’t get left behind!

## Quick Answers

- **What is this?** AC Motor Variable Speed Controller for Router Fan Electric Motor Rheostat, SCR Voltage Controller 120V 220V 15A 4000W Max by qaggum
- **How much does it cost?** HK$343 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/611377591-ac-motor-variable-speed-controller-for-router-fan-electric-motor)

## Best For

- qaggum enthusiasts

## Why This Product

- Trusted qaggum brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built for Safety:** Multi-layer surge protection and arc absorption ensure reliable operation.
- • **Instant Feedback:** LED power indicator and digital voltage readout keep you informed at a glance.
- • **Power Meets Precision:** Adjust output voltage from 10V to 110V for tailored motor control.
- • **Versatile Compatibility:** Ideal for fans, routers, soldering irons, and small motors (note: excludes complex smart appliances).
- • **Industrial-Grade Durability:** All-aluminum heat sinks and premium thyristors for rapid heat dissipation and longevity.

## Overview

The QAGGUM AC Motor Variable Speed Controller offers adjustable voltage control (10-110V) with a maximum power rating of 4000W and 15A current capacity. Designed with industrial-grade components including high-power thyristors and aluminum heat sinks, it provides efficient heat dissipation and multiple safety protections like surge and arc absorption. Perfect for regulating speed in fans, routers, and small motors, it features a real-time voltage display and LED indicators for easy monitoring. Note: Not suitable for high inductive loads above 1500W or complex smart appliances.

## Description

desertcart.com : QAGGUM AC Motor Variable Speed Controller for Router Fan Electric Motor Rheostat, SCR Voltage Controller 120V 220V 15A 4000W Max : Tools & Home Improvement

Review: Fan speed reduced. - This worked fine for reducing the speed of my 2 fans. I used a power strip in the box and plugged the fans in power strip.
Review: Not 4000 watts FIRE DANGER! - Definitely not 4000 watts as I had a 1650 watt item plugged into it. I lost control to the dial after about 10 minutes and then I shut off the power button and it didn’t shut off. It started smoking and it could have caught fire. The cord isn’t even rated for 1200 watts. I definitely would NOT recommend for anything above 1000 watts.

## Features

- Specifications: Input voltage: AC 120v-220V Output voltage: 10-110V (adjustable) Maximum power: 4000W Max. Current: 15A, adjustable voltage range: 0 -110V. Note: The maximum power for connecting inductive loads (such as fans and routers) is about 1500W, and the maximum power for connecting resistive loads (such as electric furnaces and heating wires) is 4000W
- Safe and Reliable: Fan speed controller has no lag, no delay, surge protection, anti-peak, and arc absorption multiple protections. Input and output are all AC. The core chip adopts a new bi-directional high-power thyristor with adjustable buttons and a current of up to 15A, which solves the problem of wire overcurrent when the heat dissipation resistance is too large and provides you with comprehensive safety protection
- High Quality and Durable: Variable fan speed controller uses imported high-quality chip thyristors and electronic voltage regulators, heat dissipation plugs, and all-aluminum heat sinks, which are suitable for high-temperature circuits and provide rapid heat dissipation. Using multi-functional industrial sockets and thickened phosphor bronze accessories, high stability, using high current, good contact
- Wide Range of Applications: Variable voltage regulator widely used in electric stoves, water heaters, tungsten lamps, small motors, fan speed regulation, electric soldering irons, etc. Many motors do not support voltage regulation (for example, single-phase motors, dual-value capacitor motors, asynchronous motors, etc. are not supported.) Warning, not suitable for smart home appliances with complex circuit boards
- Super Convenient: The LED power indicator light allows you to know the working status at any time, and the display screen displays the output voltage in real time, making the working voltage clear at a glance, making it easy for you to adjust at any time, making your work more convenient

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CR5C29XH |
| Batteries required | No |
| Best Sellers Rank | #349,188 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #304 in Electrical Motor Controls |
| Customer Reviews | 3.7 3.7 out of 5 stars (48) |
| Included Components | 1*Variable Speed Controller |
| Item Weight | 1.14 pounds |
| Manufacturer | Naviclass |
| Package Dimensions | 6.73 x 5 x 3.62 inches |

## Product Details

- **Brand:** QAGGUM
- **Color:** Black
- **Display Type:** LED
- **Item Weight:** 0.52 Kilograms
- **Material:** tungsten

## Images

![AC Motor Variable Speed Controller for Router Fan Electric Motor Rheostat, SCR Voltage Controller 120V 220V 15A 4000W Max - Image 1](https://m.media-amazon.com/images/I/61jhKyXZqZL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fan speed reduced.
*by J***J on February 26, 2025*

This worked fine for reducing the speed of my 2 fans. I used a power strip in the box and plugged the fans in power strip.

### ⭐ Not 4000 watts FIRE DANGER!
*by C***N on July 27, 2025*

Definitely not 4000 watts as I had a 1650 watt item plugged into it. I lost control to the dial after about 10 minutes and then I shut off the power button and it didn’t shut off. It started smoking and it could have caught fire. The cord isn’t even rated for 1200 watts. I definitely would NOT recommend for anything above 1000 watts.

### ⭐⭐⭐⭐⭐ Works perfect
*by S***T on October 31, 2023*

I use this on my exterior fan on my deck. The fan speed is too high and with this I can adjust the speed to where I like it.

## Frequently Bought Together

- QAGGUM Variable Speed Controller for Router Fan Electric Motor, SCR Voltage Controller 120V 220V 15A 4000W Max
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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-20*